PA2009 B2 - won't Drag-n-Drop multiple files

Using PA 2009 Beta 2 (11.00.45) I cannot select multiple files in the archive and drag them to explorer. Doesn’t seem to matter how I select the files - Ctrl-A, Shift-Click or Ctrl-Click. When I click the selection and drag, the multi-select is lost and I get only the file that was clicked on to start the drag operation.

Using PA 2009 Beta 2 (11.00.45) I cannot select multiple files in the archive and drag them to explorer. Doesn’t seem to matter how I select the files - Ctrl-A, Shift-Click or Ctrl-Click. When I click the selection and drag, the multi-select is lost and I get only the file that was clicked on to start the drag operation.

It seems to depend on where you click (before dragging). As a test which should be reproducible, select 5 (contiguous) files within an archive. If you now try to click anywhere on the middle filename (file 3) of the selection, you cannot drag - any other filename of those selected (1, 2, 4 or 5) then it works.

Ah! - that led me to what I think is the key. Multi-file drag from an archive works if you have the Preview window closed or if the file you click on to initiate the drag operation does not have a preview.

If the file you click on to start the drag operation displays something in the preview window, the drag will only get that file.

Note that behavior only happens for files inside an archive - if you’re just looking at files in a directory the multi-file drag works fine regardless of the preview.

Using PA 18.00.58 (07/2018) 64-bit
I have a .7z archive with all files encrypted. When I select 1 file to delete from the archive, PA deletes all files from the archive and gives an error pop-up window that the archive is no longer a valid file.
I’ve submitted a ticket for this, but was wondering if anyone else is having this problem.

to solve this problem in the future it would be nice to beable to associate an extention with an archive format.
this will solve problems when pa can’t recognise a format as it seems pa uses the . ext to recognise formats unlike its freeware days when it could detect a format that had the wrong extesion. oh well with progress you loose good features